共查询到20条相似文献,搜索用时 875 毫秒
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缺铁:可多食黑木耳、海藻、动物肝脏、黄花菜、血.豆腐、蘑菇、油莱、腐竹、酵母、芝麻、蚬子等.缺铜:多食动物肝脏、猪肉、菠菜、大豆、柿子、芝麻、淡水河螺、虾、蛤蜊、糙米.缺锌:可多食鱼、牡蛎、瘦肉、牛肉、羊肉、动物肝肾、蛋类、可可、奶制品、干酷花生、芝麻、大豆制品、核桃、糙米、粗面粉.缺镁:多食海带、紫菜、芝麻、大豆、糙米、玉米、小麦、菠菜、芥菜、黄花莱、黑枣、香蕉、菠菜.缺碘:多食海带、紫菜、海鱼、海虾.缺钙:可多食虾米、虾皮、蟹、鱼、海藻、海带、菠菜、骨头汤、大豆、核桃、花生. 相似文献
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营养过剩成为现代人的健康大敌。由于过量摄入高蛋白、高脂肪、高糖类 等高营养物质,过剩的营养在体内产生大量的酸性物质,破坏了体内酸碱平衡, 导致酸性体质。酸性体质是产生高血压、糖尿病、心脑血管疾病、高血脂、痛风、 癌症等现代文明病的主要根源之一。预防酸性体质首先要从饮食开始,注意酸 性食物和碱性食物的合理搭配。 属于碱性的常见食物有:菠菜、卷心菜、萝卜、青笋、胡萝卜、马铃薯、黄瓜、 南瓜、豆腐、豌豆、赤豆、绿豆、山芋、甘薯、四季豆、藕、栗子、洋葱、茄子、香菇、 牛奶、蛋白、橘子、葡萄、香蕉、苹果、柿子等。 属于酸性的常见食物有:牛肉、猪肉、鸡肉、蛋黄、牡蛎、鳝鱼、糙米、 面条、面包、蚕豆、章鱼、泥鳅、虾、蟹、鱿鱼、鸭肉、紫菜、白糖、啤酒等。 相似文献
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为拓宽表面活性素Surfactin的应用范围,拟制备以卡波姆974p作为抑菌凝胶基质、Surfactin作为抑菌成分、三乙醇胺为中和剂的Surfactin抑菌凝胶。通过研究各成分对该抑菌凝胶的抑菌作用、pH值和黏度的影响,设计Box-Behnken响应面试验得到最佳配方,优化结果为Surfactin用量0.60%、卡波姆974p用量0.35%、三乙醇胺用量0.30%,此条件下得到的抑菌凝胶感官清亮,Surfactin性质更加稳定,有较强的瞬时杀菌活性,与溶液相比,对成熟的金黄色葡萄球菌生物膜的清除效果有显著提升,处理后的生物膜出现裂纹,颜色变浅透亮,分布稀疏,更容易被清除。 相似文献
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叙述了在盐酸异丙醇介质中,以甲基红为指示剂、氢氧化钠返滴定法测试环氧值。讨论了温度、反应时间、不同测试方法对测试结果的影响,与常用的其它环氧值测试方法相比该方法具有简单、安全、准确的优点。 相似文献
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阐述了使壳聚糖产生抗菌性的三种工艺及将脱乙酰甲壳素季铵盐化的三种方法和抑菌机理,将季铵盐化的壳聚糖和BTCA混合整理在棉织物上,测试了壳聚糖整理对织物白度、撕破强力、抗菌性、尺寸稳定性和色牢度的影响。结果表明,壳聚糖整理后织物的抑菌率达90%,且耐水洗,尺寸稳定性良好。 相似文献
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In this study, water-repellent, oil-repellent and flame-retardant cotton fabrics were developed by solgel technique. With this aim, nanosols were prepared using tetraethylorthosilicate and hexadecyltrimethoxysilane as precursors, guanidine dihydrogen phosphate as flame-retardant agent and Guard AFB as conventional water–oil-repellent agent, solvents and chelating agents. Then, to AC105, VA7110, PU1110 and FC9005 as polymeric additives, with/without FX8000 or urea and formaldehyde as cross-linking agents, were added some nanosols to improve washing fastness of the fabric samples. Cotton fabrics were treated with nanosols without polymeric additives by pad–dry–cure process, while they were coated with nanosols containing polymeric additives by knife-over-roll coating. Water–oil-repellent properties, flame-retardant properties, washing fastness, contact angle, whiteness, tear strength and add-on values of the coated fabric samples were determined. It was found that the cotton fabrics with good water–oil-repellence and flame-retardant properties with relatively durable properties could be produced using nanosols containing guanidine dihydrogen phosphate and urea, together with tetraethylorthosilicate and hexadecyltrimethoxysilane as precursors, and lower concentrations of Guard AFB as commercial water–oil-repellent agent. However, the fabric samples were still not sufficiently durable when washed. It was deduced that the durability of cotton fabric during washing is developed by means of treatment with nanosols containing polyvinyl acetate-based polymer. 相似文献
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Efficient electropulse transformation of intact Candida maltosa cells by different homologous vector plasmids. 总被引:2,自引:0,他引:2
Conditions for efficient and quick transformation by electroporation were developed in Candida maltosa. To investigate the efficiency of transformation with integrative as well as with autonomously replicating plasmids, a series of vectors was constructed for homologous transformation of this species. Transformants were obtained with different plasmids as covalently closed circular molecules and as linearized DNA. The influence of recipient strain and plasmid type as well as of cell number and parameters of the supplied electrical pulse on the transformation efficiency have been investigated. A maximum of 7000 transformants per 100 ng of plasmid DNA was reached. The efficiency of transformation was compared with that of the LiCl method. 相似文献
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基于稳健设计理论的平面机构优化设计 总被引:2,自引:2,他引:0
运用稳健设计理论,以连杆机构的几何参数为设计变量,以满足曲柄摇杆机构及传动角条件为约束。以再现轨迹精度最佳为目标函数。同时考虑连杆件制造精度对轨迹精度的影响。采用蒙特卡罗法采样和多目标遗传算法对机构进行稳健优化设计。计算结果表明:该方法更符合实际情况,且当设计变量发生变异时,能有效保证机构的运动轨迹精度。 相似文献
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Kitagawa S Mukai N Furukawa Y Adachi K Mizuno A Iefuji H 《Journal of Bioscience and Bioengineering》2008,105(4):360-366
Here, we examined the effect of soy peptides (SPs) on the fermentation and growth of Yeast Bank Weihenstephan 34/70 (W34/70), a bottom-fermenting yeast. We compared fermentation for SP with that for a free amino acid (FAA) mixture having the same amino acid composition as SP, as a nitrogen source. Maltose syrup was used as a carbon source, and the medium contained excess amounts of essential minerals and vitamins. We observed that SP was better than FAA mixture at promoting fermentation and growth and that much more beta-phenylethyl alcohol was produced during fermentation with SP than with FAA mixture. Subsequently, we compared fermentations with the FAA mixture and selected mixtures containing various dipeptides of Phe as a nitrogen source. We found that the rates of Phe metabolism and beta-phenylethyl alcohol generation were much higher when Phe was presented as a dipeptide (Phe-Asp, Phe-Leu, or Phe-Phe) than when presented as FAA. These results show that amino acids such as Phe are absorbed more rapidly when presented as a peptide than as FAA, resulting in a more rapid production of beta-phenylethyl alcohol. 相似文献